CN1775779A - Diphenyl ether azole derivative bioelectronic transmission material, and its new preparing method and use - Google Patents
Diphenyl ether azole derivative bioelectronic transmission material, and its new preparing method and use Download PDFInfo
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Abstract
The invention belongs to the technical field of organic luminous material, concretely relating to a diphenyl ether azole ramification electronic transmission material and its new preparing method and application. It uses diphenyl ester as the center in structure, containing nitrogen, sulfur and oxygen heteroaromatic cycles; and it is made by acylation and condensation reactions of aromatic amine; and it has very good thermal stability and film forming property, widely used as electronic transmission material for organic light emitting devices and doping material.
Description
Technical field
The invention belongs to the luminous organic material field, be specifically related to diphenyl ether azole derivative bioelectronic transmission material and novel preparation method thereof and application thereof.
Background technology
Since (Tang C.W. such as Tang, Vanslyke S A.Appl Phys Lett, 1987,51 (12), 913.) reported (Burroughes J.H. such as the organic molecule membrane electro luminescent device of low driving voltage, high brightness, high-luminous-efficiency and Burroughes, Bradlyd O.C., Brown A.R., et al.Nature, 1990,347,539.) reported that since first polymer electroluminescent device, organic/Study on polymer electroluminescence devices has obtained significant progress.Wherein, carrier transmission material has played vital role efficiently.Especially, the development of electron transport material efficiently is considered to further improve the key of organic electroluminescence device performance.Because for hole mobile material efficiently, the number kind of electron transport material is also very limited efficiently.
The azole material has good electron-transporting and good heat endurance and oxidation-resistance, is present most widely used electron transport material, has following several characteristics:
(1) photoluminescence of material and electroluminescent wave band are in blue light and green glow zone.The material of the luminescent material of this wave band, particularly blue light-emitting is relatively shortage at present.
(2) luminosity height, photoluminescence can be up to 400～1000cd/m
2, electroluminescent brightness can reach 1000～3000cd/m
2, operating voltage is generally at 2～7V.
(3) property stable in the air is good, and fusing point is higher, and vacuum high-temperature easily evaporates film forming, is suitable for being used for making thin-film device.
(4) this class luminescent material has electronics and hole conduction ability simultaneously, like this, they not only can be used as the luminescent layer of organic EL device, also can be used as simultaneously the electric transmission or the hole transmission layer of device, to reduce the height (being operating voltage) of the El element current transfer potential barrier that other luminescent material makes, strengthen the luminous efficiency and the stability of photoluminescence of luminescent layer.
This shows that the oxazole derivatives material has many good characteristics, is the very promising multi-usage luminescent material of a class.
Summary of the invention
The object of the present invention is to provide a kind of diphenyl ether azole derivative bioelectronic transmission material and novel preparation method thereof, this electron transport material has better thermostability, film-forming properties and electric transmission efficient with respect to existing electron transport material.The present invention also provides the application of this electron transport material aspect the preparation electroluminescent device.
The diphenyl ether azole derivative bioelectronic transmission material that the present invention proposes is the center with the phenyl ether structurally, contains the aromatic ring of azepine, thia, oxa-, and its structure is as follows:
Wherein X is a kind of in oxygen, the sulphur atom; Y is a kind of among nitrogen-atoms, the CH; Z is a kind of among oxygen, sulphur, nitrogen, the CH;
R
1A kind of in hydrogen, fluorine, chlorine, bromine, methyl, trifluoromethyl, ethyl, sec.-propyl, the phenyl;
When Z is oxygen, sulphur, R
2Do not exist, when Z is nitrogen, CH, R
2Be methyl, ethyl, sec.-propyl, the tertiary butyl, phenyl, xenyl, p-methylphenyl, an aminomethyl phenyl, p-methoxyphenyl, a kind of in the Phenoxyphenyl;
R
3Be hydrogen atom, methyl, ethyl, fluorine atom, chlorine atom, bromine atoms, N, N '-dimethyl, phenyl ,-a kind of among the CH=CH-CH=CH-, naphthyl.
Further, the preferred especially following electron transport material of the present invention:
(1) Chinese is: 2,2 '-(oxa-two-right-phenylene) dibenzoxazine
English name is: 2,2 '-(Oxydi-p-phenylene) bisbenzoxazole
Molecular formula is: C
26H
16N
2O
3, molecular structural formula is:
(2) Chinese is: 2,2 '-(oxa-two-right-phenylene) two benzothiazoles
English name is: 2,2 '-(Oxydi-p-phenylene) bisbenzothiazole
Molecular formula is: C
26H
16N
2OS
2, molecular structural formula is:
(3) Chinese is: 2,2 '-(thia two-right-phenylene) dibenzoxazine
English name is: 2,2 '-(Thiodi-p-phenylene) bisbenzoxazole
Molecular formula is: C
26H
16N
2O
2S, molecular structural formula is:
(4) Chinese is: 2,2 '-(thia two-right-phenylene) two benzothiazoles
English name is: 2,2 '-(Thiodi-p-phenylene) bisbenzothiazole
Molecular formula is: C
26H
16N
2S
3, molecular structural formula is:
(5) Chinese is: 2,2 '-(oxa-two-3-methyl-4,1-phenylene) dibenzoxazine
English name is: 2,2 '-(Oxydi-3-methyl-4,1-phenylene)) bisbenzoxazole
Molecular formula is: C
28H
20N
2O
3, molecular structural formula is:
(6) Chinese is: 2,2 '-(oxa-two-3-methyl-4,1-phenylene) two benzothiazoles
English name is: 2,2 '-(Oxydi-3-methyl-4,1-phenylene)) bisbenzothiazole
Molecular formula is: C
28H
20N
2OS
2, molecular structural formula is:
(7) Chinese is: 2,2 '-(oxa-two-3-phenyl-4,1-phenylene) dibenzoxazine
English name is: 2,2 '-(Oxydi-3-phenyl-4,1-phenylene)) bisbenzoxazole
Molecular formula is: C
38H
24N
2O
3, molecular structural formula is:
(8) Chinese is: 2,2 '-(thia two-3-phenyl-4,1-phenylene) two benzothiazoles
English name is: 2,2 '-(Thiodi-3-phenyl-4,1-phenylene)) bisbenzothiazole
Molecular formula is: C
38H
24N
2S
3, molecular structural formula is:
(9) Chinese is: 2,2 '-(oxa-two-3-trifluoromethyl-4,1-phenylene) two (6-Jia base benzoxazoles)
English name is: 2,2 '-(Oxydi-3-trifluoromethyl-4,1-phenylene)) bis (6-methylbenzoxazole)
Molecular formula is: C
30H
18F
6N
2O
3, molecular structural formula is:
(10) Chinese is: 2,2 '-(thia two-3-trifluoromethyl-4,1-phenylene) two (2, the 3-naphthoxazole)
English name is: 2,2 '-(Thiodi-3-trifluoromethyl-4,1-phenylene)) bis (2,3-naphthoxazole)
Molecular formula is: C
36H
18F
6N
2O
2S, molecular structural formula is:
(11) Chinese is: 2,2 '-(oxa-two-right-phenylene) two (3-tolimidazoles)
English name is: 2,2 '-(Oxydi-p-phenylene) bis (3-methylbenzoimidazole)
Molecular formula is: C
28H
22N
4O, molecular structural formula is:
(12) Chinese is: 2,2 '-(oxa-two-right-phenylene) two (3-phenyl benzoglyoxalines)
English name is: 2,2 '-(Oxydi-p-phenylene) bis (3-phenylbenzoimidazole)
Molecular formula is: C
38H
26N
4O, molecular structural formula is:
(13) Chinese is: 2,2 '-(oxa-two-right-phenylene) two (3-xenyl benzoglyoxalines)
English name is: 2,2 '-(Oxydi-p-phenylene) bis (3-(diphenyl) benzoimidazole)
Molecular formula is: C
50H
34N
4O, molecular structural formula is:
(14) Chinese is: 2,2 '-(thia two-right-phenylene) two (3-phenyl benzoglyoxalines)
English name is: 2,2 '-(Thiodi-p-phenylene) bis (3-phenylbenzoimidazole)
Molecular formula is: C
38H
26N
4S, molecular structural formula is:
(15) Chinese is: 2,2 '-(thia two-right-phenylene) two (3-xenyl benzoglyoxalines)
English name is: 2,2 '-(Thiodi-p-phenylene) bis (3-(diphenyl) benzoimidazole)
Molecular formula is: C
50H
34N
4S, molecular structural formula is:
(16) Chinese is: 2,2 '-(oxa-two-right-phenylene) two (2,3-naphtho-imidazoles)
English name is: 2,2 '-(Oxydi-p-phenylene) bis (2,3-naphthimidazole)
Molecular formula is: C
58H
38N
4O, molecular structural formula is:
(17) Chinese is: 2,2 '-(thia two-right-phenylene) two (2,3-naphtho-imidazoles)
English name is: 2,2 '-(Thiodi-p-phenylene) bis (2,3-naphthimidazole)
Molecular formula is: C
58H
38N
4S, molecular structural formula is:
(18) Chinese is: 2,2 '-(oxa-two-3-phenyl-4,1-phenylene) two (2,3-naphtho-imidazoles)
English name is: 2,2 '-(Oxydi-3-phenyl-4,1-phenylene) bis (2,3-naphthimidazole)
Molecular formula is: C
70H
46N
4O, molecular structural formula is:
(19) Chinese is: 2,2 '-(thia two-3-phenyl-4,1-phenylene) two (2,3-naphtho-imidazoles)
English name is: 2,2 '-(Thiodi-3-phenyl-4,1-phenylene) bis (2,3-naphthimidazole)
Molecular formula is: C
70H
46N
4S, molecular structural formula is:
The invention allows for the preparation method of such electron transport material, it is characterized in that utilizing the method for organic synthesis, do raw material with amine (2) acyl chlorides (1), synthetic adjacent anilino acid amides (3) generates product (4) with adjacent anilino acid amides (3) condensation reaction under vacuum condition then.
The preparation method of above-mentioned electron transport material, its concrete steps are:
A) amine (2) is dissolved in the organic solvent, in 15～60 minutes acyl chlorides (1) is added wherein, amine (2) with the mol ratio of acyl chlorides (1) is: 2.0～3.0: 1, at room temperature react 2～8 hours after, adjacent anilino acid amides (3);
B) adjacent anilino acid amides (3) is heated to 200～300 ℃ under vacuum condition, isothermal reaction 4～24 hours is carried out separation and purification and is promptly got pure products (4).
Above-mentioned organic solvent refers to benzene,toluene,xylene, methylene dichloride, trichloromethane, ether, tetrahydrofuran (THF), 1,4-dioxane, hexanaphthene a kind of.
In 15～60 minutes acyl chlorides (1) being added is in order to prevent to add excessive velocities, to cause side reaction.
Reaction equation is as follows:
The present invention also provides the above-mentioned application of electron transport material aspect the preparation electroluminescent device.Above-mentioned material can also be used as nonlinear optical material, medicine intermediate etc.
The material that the present invention proposes is as the electron transport material of organic electroluminescence device, and high thermostability, high electric transmission efficient are arranged, and superior performance is in existing same type of material (as: PDPDP-Bu-t (seal Shou Gen etc., chemical reagent, 1997,19 (1), 5.)).The sandwich structure device maximum luminousing brightness of preparation reaches 2 * 10
5Cd/m
2, maximum luminous efficiency reaches 5cd/A, and the life-span of device can reach thousands of hours.
Embodiment
Embodiment 1
In the there-necked flask that agitator, nitrogen ingress pipe, reflux exchanger are housed, add Ortho-Aminophenol (24mmol), anhydrous tetrahydro furan (THF) successively (30ml), stir, in 50 minutes, add 4,4 '-oxa-dibenzoyl chlorine (10mmol), reaction is 4 hours under the room temperature, reaction solution is poured in the 150ml deionized water then, the adularescent solid is separated out, and filters, THF/H is used in oven dry
2The O recrystallization gets white crystal 4,4 " oxa-two [2 '-hydroxyl-benzanilide].With 4,4 " oxa-two [2 '-hydroxyl-benzanilide] is put into silica tube; be evacuated to 1mmHg, be heated to 250～270 ℃ of reactions 4 hours, cooling; use the toluene recrystallization; must 2,2 '-(oxa-two-right-phenylene) dibenzoxazine, i.e. compound (A); productive rate 85%, 246～247 ℃ of fusing points.
Embodiment 2
In the there-necked flask that agitator, nitrogen ingress pipe, reflux exchanger are housed, add near amino thiophenols (22mmol), 1 successively, 4-dioxane (30ml), stir, in 30 minutes, add 4,4 '-oxa-dibenzoyl chlorine (10mmol), reaction is 8 hours under the room temperature, reaction solution is poured in the 250ml deionized water then, the adularescent solid is separated out, and filters oven dry, with 1,4-dioxane/H
2The O recrystallization gets white crystal 4,4 " oxa-two [2 '-sulfydryl-benzanilide].With 4,4 " oxa-two [2 '-sulfydryl-benzanilide] is put into silica tube; be evacuated to 1mmHg, be heated to 260～280 ℃ of reactions 8 hours, cooling; use the dimethylbenzene recrystallization; must 2,2 '-(oxa-two-right-phenylene) two benzothiazoles, i.e. compound (B); productive rate 80%, fusing point＞280 ℃.
Embodiment 3
In the there-necked flask that agitator, nitrogen ingress pipe, reflux exchanger are housed, add N-phenyl-1 successively, 2-phenylenediamine (20mmol), N, dinethylformamide (DMF) (30ml), stir, in 15 minutes, add 4,4 '-oxa-dibenzoyl chlorine (10mmol), reaction is 1 hour under the room temperature, reaction solution is poured in the 200ml deionized water then, the adularescent solid is separated out, and filters, DMF/H is used in oven dry
2The O recrystallization get white crystal 4,4 '-two [N-[2-(anilino) phenyl] benzamide of oxa-.With 4,4 '-two [N-[2-(anilino) phenyl] benzamide of oxa-put into silica tube, be evacuated to 1mmHg, be heated to 280～300 ℃ of reactions 6 hours, cooling, solid subliming method purifying, 2,2 '-(oxa-two-right-phenylene) two (3-phenyl benzoglyoxalines), i.e. compound (L), productive rate 75%, 237～239 ℃ of fusing points.
Embodiment 4～22
Reaction conditions and processing step are referring to embodiment 1, and raw material is used in reaction, and intermediate product, final product are referring to table 1, and its technical parameter as the performance of the luminescent device of electronic luminescent material preparation sees Table 2.
Table 1 embodiment 4～22
| Embodiment | Reactant | Intermediate product (3) | Final product (4) | |
| Raw material (1) | Raw material (2) | |||
| Embodiment 4 | 4,4 '-thia dibenzoyl chlorine | Ortho-Aminophenol | 4,4 " thia two [2 '-hydroxyl-benzanilide] | C |
| Embodiment 5 | 4,4 '-thia dibenzoyl chlorine | Near amino thiophenols | 4,4 " thia two [2 '-sulfydryl-benzanilide] | D |
| Embodiment 6 | 2,2 '-dimethyl-4,4 '-oxa-dibenzoyl chlorine | Ortho-Aminophenol | 2,2 '-dimethyl-4,4 " oxa-two [2 '-hydroxyl-benzanilide] | E |
| Embodiment 7 | 2,2 '-dimethyl-4,4 '-oxa-dibenzoyl chlorine | Near amino thiophenols | 2,2 '-dimethyl-4,4 " oxa-two [2 '-sulfydryl-benzanilide] | F |
| Embodiment 8 | 2,2 '-phenylbenzene-4,4 '-oxa-dibenzoyl chlorine | Ortho-Aminophenol | 2,2 '-phenylbenzene-4,4 " oxa-two [2 '-hydroxyl-benzanilide] | G |
| Embodiment 9 | 2,2 '-phenylbenzene-4,4 '-thia dibenzoyl chlorine | Near amino thiophenols | 2,2 '-phenylbenzene-4,4 " thia two [2 '-sulfydryl-benzanilide] | H |
| Embodiment 10 | 2,2 '-two (trifluoromethyl)-4,4 '-oxa-dibenzoyl chlorine | 4-methyl Ortho-Aminophenol | 2,2 '-two (trifluoromethyl)-4,4 " oxa-two [2 '-hydroxyl-5 '-toluyl aniline] | I |
| Embodiment 11 | 2,2 '-two (trifluoromethyl)-4,4 '-thia dibenzoyl chlorine | Adjacent amino naphthalenes thiophenol | 2,2 '-two (trifluoromethyl)-4,4 " thia two [3 '-hydroxyl-2 '-naphthanilide] | J |
| Embodiment 12 | 4,4 '-oxa-dibenzoyl chlorine | The N-methyl isophthalic acid, the 2-phenylenediamine | 4,4 '-two [N-[2-(methylamino) phenyl] benzamide of oxa- | K |
| Embodiment 13 | 4,4 '-oxa-dibenzoyl chlorine | N-xenyl-1, the 2-phenylenediamine | 4,4 '-two [N-[2-(benzidion) phenyl] benzamide of oxa- | M |
| Embodiment 14 | 4,4 '-thia dibenzoyl chlorine | N-phenyl-1, the 2-phenylenediamine | 4,4 '-two [N-[2-(anilino) phenyl] benzamide of thia | N |
| Embodiment 15 | 4,4 '-thia dibenzoyl chlorine | N-xenyl-1, the 2-phenylenediamine | 4,4 '-two [N-[2-(benzidion) phenyl] benzamide of thia | O |
| Embodiment 16 | 4,4 '-oxa-dibenzoyl chlorine | N-xenyl-2, the 3-naphthylene diamine | 4,4 '-two [N-[3-(the benzidion)-2-naphthyl] benzamide of oxa- | P |
| Embodiment 17 | 4,4 '-thia dibenzoyl chlorine | N-xenyl-2, the 3-naphthylene diamine | 4,4 '-two [N-[3-(the benzidion)-2-naphthyl] benzamide of thia | Q |
| Embodiment 18 | 2,2 '-phenyl-4,4 '-oxa-dibenzoyl chlorine | N-xenyl-2, the 3-naphthylene diamine | 2,2 '-phenyl-4,4 '-two [N-[3-(the benzidion)-2-naphthyl] benzamide of oxa- | R |
| Embodiment 19 | 2,2 '-phenyl-4,4 '-thia dibenzoyl chlorine | N-xenyl-2, the 3-naphthylene diamine | 2,2 '-phenyl-4,4 '-two [N-[3-(the benzidion)-2-naphthyl] benzamide of thia | S |
| Embodiment 20 | 2,2 '-chloro-4,4 '-thia dibenzoyl chlorine | N-phenyl-3-fluoro-1, the 2-phenylenediamine | 2,2 '-chloro-4,4 '-two [N-[2-(anilino) 3-fluorophenyl] benzamide of oxa- | R1 is a chlorine, and R3 is a fluorine |
| Embodiment 21 | 4,4 '-oxa-dibenzoyl chlorine | N-is to Phenoxyphenyl-1, the 2-phenylenediamine | 4,4 '-two [N-[2-(to the phenoxybenzamine base) phenyl] benzamide of oxa- | R3 is to Phenoxyphenyl |
| Embodiment 22 | 4,4 '-oxa-dibenzoyl chlorine | N-phenyl-3-(N, N ' dimethyl)-1, the 2-phenylenediamine | 4,4 '-two [N-[2-(anilino) 3-(N, the N '-dimethyl) phenyl] benzamide of oxa- | R3 is N, N '-dimethyl |
Table 2: with the diphenyl ether type oxazole derivatives is electron transport material (ETM), oxine aluminium is luminescent material (EL), making three arylamine H40 by oneself is hole mobile material (HTM), made the luminescent device (making method is an ordinary method) of ITO/HTM/EL/ETM/Mg:Ag structure, the correlation technique parameter that obtains
| Electron transport material among the embodiment | Maximum luminousing brightness (cd/m 2) | Maximum luminous efficiency (cd/A) | Device luminescent lifetime (h) |
| Embodiment 1 | 1.2×10 5 | 1.8 | 1250 |
| Embodiment 2 | 1.1×10 5 | 1.9 | 1800 |
| Embodiment 3 | 1.9×10 5 | 1.8 | 3800 |
| Embodiment 4 | 1.0×10 5 | 1.6 | 1100 |
| Embodiment 5 | 1.8×10 5 | 1.2 | 2600 |
| Embodiment 6 | 1.7×10 5 | 1.9 | 4500 |
| Embodiment 7 | 1.6×10 5 | 2.3 | 3200 |
| Embodiment 8 | 1.2×10 5 | 1.1 | 1750 |
| Embodiment 9 | 1.9×10 5 | 2.9 | 2400 |
| Embodiment 10 | 1.1×10 5 | 3.6 | 1600 |
| Embodiment 11 | 1.5×10 5 | 2.6 | 5800 |
| Embodiment 12 | 1.1×10 5 | 2.3 | 4600 |
| Embodiment 13 | 1.3×10 5 | 2.9 | 4100 |
| Embodiment 14 | 1.9×10 5 | 4.1 | 5600 |
| Embodiment 15 | 1.6×10 5 | 4.3 | 4900 |
| Embodiment 16 | 1.8×10 5 | 3.5 | 6000 |
| Embodiment 17 | 2.0×10 5 | 5.0 | 6600 |
| Embodiment 18 | 1.9×10 5 | 4.8 | 4300 |
| Embodiment 19 | 1.4×10 5 | 4.1 | 4200 |
| Embodiment 20 | 1.3×10 5 | 3.6 | 3500 |
| Embodiment 21 | 1.8×10 5 | 2.5 | 1800 |
| Embodiment 22 | 1.5×10 5 | 1.9 | 4100 |
Claims (4)
1. a diphenyl ether azole derivative bioelectronic transmission material is characterized in that this material is the center with the phenyl ether, contains the aromatic ring of azepine, thia, oxa-, and its structure is as follows:
Wherein X is a kind of in oxygen, the sulphur atom; Y is a kind of among nitrogen-atoms, the CH; Z is a kind of among oxygen, sulphur, nitrogen, the CH; R
1For a kind of in hydrogen, fluorine, chlorine, bromine, methyl, trifluoromethyl, ethyl, sec.-propyl, the phenyl; When Z is oxygen, sulphur, R
2Do not exist, when Z is nitrogen, CH, R
2For methyl, ethyl, sec.-propyl, the tertiary butyl, phenyl, xenyl, p-methylphenyl, an aminomethyl phenyl, p-methoxyphenyl, to a kind of in the Phenoxyphenyl; R
3Be hydrogen atom, methyl, ethyl, fluorine atom, chlorine atom, bromine atoms, N, N '-dimethyl, phenyl ,-a kind of among the CH=CH-CH=CH-, naphthyl.
2. electron transport material according to claim 1 is characterized in that a kind of for following material:
(1) X is the O atom, and Y is the N atom, and Z is the O atom, R
1Be hydrogen atom, R
3Be hydrogen atom, its molecular formula is: C
26H
16N
2O
3, molecular structural formula is:
(2) X is the O atom, and Y is the N atom, and Z is the S atom, R
1Be hydrogen atom, R
3Be hydrogen atom, its molecular formula is: C
26H
16N
2OS
2, molecular structural formula is:
(3) X is the S atom, and Y is the N atom, and Z is the O atom, R
1Be hydrogen atom, R
3Be hydrogen atom, its molecular formula is: C
26H
16N
2O
2S, molecular structural formula is:
(4) X is the S atom, and Y is the N atom, and Z is the S atom, R
1Be hydrogen atom, R
3Be hydrogen atom, its molecular formula is: C
26H
16N
2S
3, molecular structural formula is:
(5) X is the O atom, and Y is the N atom, and Z is the O atom, R
1Be methyl, R
3Be hydrogen atom, its molecular formula is: C
28H
20N
2O
3, molecular structural formula is:
(6) X is the O atom, and Y is the N atom, and Z is the S atom, R
1Be methyl, R
3Be hydrogen atom, its molecular formula is: C
28H
20N
2OS
2, molecular structural formula is:
(7) X is the O atom, and Y is the N atom, and Z is the O atom, R
1Be phenyl, R
3Be hydrogen atom, its molecular formula is: C
38H
24N
2O
3, molecular structural formula is:
(8) X is the S atom, and Y is the N atom, and Z is the S atom, R
1Be phenyl, R
3Be hydrogen atom, its molecular formula is: C
38H
24N
2S
3, molecular structural formula is:
(9) X is the O atom, and Y is the N atom, and Z is the O atom, R
1Be trifluoromethyl, R
3Be methyl, its molecular formula is: C
30H
18F
6N
2O
3, molecular structural formula is:
(10) X is the S atom, and Y is the N atom, and Z is the O atom, R
1Be trifluoromethyl, R
3For-CH=CH-CH=CH-, its molecular formula is: C
36H
18F
6N
2O
2S, molecular structural formula is:
(11) X is the O atom, and Y is the N atom, and Z is the N atom, R
1Be hydrogen atom, R
2Be methyl, R
3Be hydrogen atom, its molecular formula is: C
28H
22N
4O, molecular structural formula is:
(12) X is the O atom, and Y is the N atom, and Z is the N atom, R
1Be hydrogen atom, R
2Be phenyl, R
3Be hydrogen atom, its molecular formula is: C
38H
26N
4O, molecular structural formula is:
(13) X is the O atom, and Y is the N atom, and Z is the N atom, R
1Be hydrogen atom, R
2Be xenyl, R
3Be hydrogen atom, its molecular formula is: C
50H
34N
4O, molecular structural formula is:
(14) X is the S atom, and Y is the N atom, and Z is the N atom, R
1Be hydrogen atom, R
2Be phenyl, R
3Be hydrogen atom, its molecular formula is: C
38H
26N
4S, molecular structural formula is:
(15) X is the S atom, and Y is the N atom, and Z is the N atom, R
1Be hydrogen atom, R
2Be xenyl, R
3Be hydrogen atom, its molecular formula is: C
50H
34N
4S, molecular structural formula is:
(16) X is the O atom, and Y is the N atom, and Z is the N atom, R
1Be hydrogen atom, R
2Be xenyl, R
3For-CH=CH-CH=CH-, its molecular formula is: C
58H
38N
4O, molecular structural formula is:
(17) X is the S atom, and Y is the N atom, and Z is the N atom, R
1Be hydrogen atom, R
2Be xenyl, R
3For-CH=CH-CH=CH-, its molecular formula is: C
58H
38N
4S, molecular structural formula is:
(18) X is the O atom, and Y is the N atom, and Z is the N atom, R
1Be phenyl, R
2Be xenyl, R
3For-the CH=CH-CH=CH-base, its molecular formula is: C
70H
46N
4O, molecular structural formula is:
(19) X is the S atom, and Y is the N atom, and Z is the N atom, R
1Be phenyl, R
2Be xenyl, R
3For-CH=CH-CH=CH-, its molecular formula is: C
70H
46N
4S, molecular structural formula is:
3. the preparation method of the described electron transport material of claim 1, it is characterized in that utilizing the method for organic synthesis, do raw material with acyl chlorides (1) and amine (2), synthetic adjacent anilino acid amides (3) generates product (4) with adjacent anilino acid amides (3) condensation reaction under vacuum condition then.Reaction equation is as follows:
Concrete steps are as follows:
Amine (2) is dissolved in the solvent, in 15～60 minutes acyl chlorides (1) is added wherein, amine (2) with the mol ratio of acyl chlorides (1) is: 2.0～3.0, at room temperature reacted 2～8 hours, and get adjacent anilino acid amides (3); Then adjacent anilino acid amides (3) is heated to 200～300 ℃ under vacuum, reacted 4～24 hours, separation and purification gets product (4).
4. the application of the described electron transport material of claim 1～2 aspect the preparation electroluminescent device.
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